package homework00110;

public class hm7_Demo {
	static int j=0;
	public  final Object lock=new Object();
	public static int getJ() {
		return j;
	}
	public static int setJ(int j) {
		hm7_Demo.j = j;
		return hm7_Demo.j;
	}
	public Object getLock() {
		return lock;
	}
	
}
